JP2011115388A5 - - Google Patents

Description

Flush toilet

  The present invention provides a flush toilet, in particular, an upper peripheral wall provided between the toilet seat and the ball peripheral wall, and a gap between the ball peripheral wall and the upper peripheral wall for introducing a water film flowing down along the outer peripheral surface of the upper peripheral wall into the ball part. The present invention relates to a flush toilet that is provided with an edge cleaning type that supplies cleaning water to an upper end surface of an upper peripheral wall to wash urine drops adhering to the surface of the upper peripheral wall.

The above-mentioned edge-washing flush toilets in which the present invention is concerned have been previously proposed by the present inventors, and conventionally, neither flush-type toilets nor urinals are subject to washing and washing. Therefore, the upper end surface, that is, the edge of the peripheral wall of the ball part is contaminated with urine droplets scattered in the same manner as in the urinal when urinating a man who is standing upright with the toilet seat upright in the toilet bowl. Focusing on what is being done, it is proposed as a countermeasure. The outline of the configuration is as follows. A water passage is provided inside the upper end surface of the ball portion peripheral wall, and the ball portion is formed as a water film flow by overflowing the wash water supplied to the water passage from the overflow opening that opens to substantially the entire length of the upper end surface. The inner and outer peripheral surfaces of the peripheral wall are cleaned, and the water film flow that has cleaned the outer peripheral surface is accommodated in the ball portion through a water collecting passage that is formed by a gap that descends from the upper portion of the outer peripheral surface to the inside of the ball portion. By doing so, there is a flush toilet flushing system and flush toilet that can not only clean the upper end surface of the ball peripheral wall but also prevent contamination of the floor surface by urine droplets flowing down the circumferential surface (see Patent Document 1). ). In this document 1, it is described that the peripheral wall portion above the gap or the water collecting channel is called the upper peripheral wall, the lower portion is called the lower peripheral wall, and the upper peripheral wall and the lower peripheral wall constitute the ball portion peripheral wall. Since the ball portion peripheral wall indicates the same portion, in this specification, the portion below the water collection channel is described as the ball portion peripheral wall for the sake of brevity and clarity.

JP 2009-7922 A

In the edge-washing flush toilet described in Patent Document 1, a configuration is adopted in which a gap is provided between the upper peripheral wall and the ball peripheral wall, but no load is applied when the user stands up and urinates without sitting. However, when sitting and defecation, a load is applied to the upper peripheral wall through the toilet seat. This load is generated on the upper end surface of the upper peripheral wall. On the upper end surface of the upper peripheral wall, there are provided water passages and overflow ports as water supply means, and the load transmitted by the four partial spacers or elastic legs is usually upper. It can be sufficient to deform the upper end surface of the peripheral wall and damage the water supply means.

In addition, since the water supply means to the upper peripheral surface of the upper peripheral wall is required to perform the overflow from the overflow outlet evenly over substantially the entire length of the upper peripheral wall, the entire overflow outlet should be horizontal when installing the toilet. It is desirable to set it, and the installation work of the toilet becomes complicated accordingly.

Furthermore, in order to maintain the clearance between the upper peripheral wall and the ball peripheral wall even under load, it is necessary to have a cantilever structure in the front part of the toilet. To set a large design load, the strength of the upper peripheral wall itself is required. It is necessary to increase the size of the cantilever structure including the increase, which is not preferable in terms of design and cost.

Accordingly, the present invention provides a flush toilet that is provided with an upper peripheral wall above the ball peripheral wall and has a water supply means on the upper end surface of the upper peripheral wall, so that the load at the time of user seating is the structure of the water supply means. Flushing with an upper peripheral wall support structure that does not affect the function, does not require complicated leveling work, and does not require a large cantilever structure or a cantilever structure as a load-bearing structure The purpose is to provide a toilet.

To achieve the above object, the flush toilet of the present invention according to claim 1 comprises an upper peripheral wall between the toilet seat and the ball portion peripheral wall, and the outer peripheral surface of the upper peripheral wall is inclined downwardly inward of the ball portion. A water collecting channel is formed between the outer peripheral surface of the upper peripheral wall and the upper end surface of the ball portion peripheral wall, which is a gap having a width that does not impede the flow of liquid droplets flowing from the upper end surface of the upper peripheral wall along the outer peripheral surface into the ball portion In the flush toilet, the toilet seat is provided with water supply means for supplying cleaning water to the upper surface of the upper peripheral wall on the lower surface thereof. According to a second aspect of the present invention, in the flush toilet according to the first aspect, the ball portion peripheral wall includes a water conduit that guides the swirling flow for the ball portion cleaning to the inner surface. According to a third aspect of the present invention, in the flush toilet according to the first aspect, the upper peripheral wall includes a water conduit that guides a part of the swirling flow for cleaning the ball portion on the inner surface. According to a fourth aspect of the present invention, in the flush toilet according to the first aspect, the upper peripheral wall is elastically supported so as to be lowered until it receives a load and the lower surface comes into contact with the upper surface of the ball peripheral wall. According to a fifth aspect of the present invention, in the flush toilet according to the first aspect, the upper peripheral wall is mounted and fixed on the water supply / drainage portion of the ball portion and is formed in an annular shape or a closed U-shape from the upper peripheral wall support portion made of an elastic material. The upper peripheral wall support part descends while absorbing this load with an elastic material due to the load from the toilet seat when seated by the user, and elastically joined to the upper end face of the ball part peripheral wall at the lower end face of the upper peripheral wall Features. According to a sixth aspect of the present invention, in the flush toilet according to the fifth aspect, the upper peripheral wall is formed thinner at the front portion corresponding to the front portion of the ball portion than the side portions corresponding to both side surfaces, and is lowered by the load. At this time, the lower end surface of the side portion is joined to the upper end surface of the ball portion peripheral wall, while the lower end surface of the front portion maintains a gap that forms a water collecting channel with the upper end surface of the ball portion peripheral wall. The flush toilet according to claim 7 is characterized in that in the flush toilet according to claim 6, the upper peripheral wall has a hanging edge extending below the upper end surface of the ball portion peripheral wall at the lower end on the ball portion inner surface side at least in the front portion. To do. The present invention of claim 8 is the flush toilet according to any one of claims 1 to 7, wherein the toilet seat includes a urine receiving plate extending near the upper end on the inner peripheral surface side of the upper peripheral wall on the lower surface of the front portion thereof. The water supply means is provided so as to be able to supply cleaning water to at least the rear surface side of the urine receiving plate.

According to the present invention, since the water supply means for cleaning the upper peripheral wall in the edge cleaning configuration is provided on the lower surface of the toilet seat and water is supplied from above, the possibility that the water supply means is damaged by the load when seated by the user is eliminated. Therefore, conventionally, the overflow mechanism that required to be installed horizontally on the upper end surface of the upper peripheral wall becomes unnecessary, and the gap forming the water collecting channel between the upper peripheral wall and the ball peripheral wall is used when the user is seated and receives a load. Since the edge may not be cleaned and the gap may be closed, the support mechanism of the upper peripheral wall is simplified and lightened, the load is lowered while absorbing the load with an elastic material, and the reduced load is reduced by the ball peripheral wall. It is possible to restore the gap by supporting and lifting with the disappearance of the load due to user separation.

FIG. 1 is a perspective view showing a flush toilet according to a first embodiment of the present invention in a state in which a toilet lid and a toilet seat are erected with no load. FIG. 2 is a partially enlarged cross-sectional view showing the positional relationship between the upper peripheral wall of the ball part and the peripheral wall of the flush toilet of FIG. FIG. 3 is a partial enlarged cross-sectional view showing the positional relationship among the toilet seat, the upper peripheral wall, and the ball peripheral wall when the user's seat is loaded, in the flush toilet of FIG. FIG. 4 is a perspective view showing the flush toilet of Example 2 according to the present invention with the toilet lid and toilet seat raised. FIG. 5 is a side view schematically showing the configuration of the toilet seat, the upper peripheral wall including the support portion, and the ball portion peripheral wall when the flush toilet of FIG. 6 is a side view schematically showing the configuration of the user seating of the flush toilet of FIG. 4, that is, the toilet seat when there is a load, the upper peripheral wall including the support portion, and the ball portion peripheral wall. FIG. 7 is a partially enlarged cross-sectional view taken along line A-A ′ in FIG. 5, showing a positional relationship among the toilet seat, the upper peripheral wall, and the ball peripheral wall when no load is applied and edge cleaning is performed. FIG. 8 is a partially enlarged cross-sectional view taken along line B-B ′ in FIG. 6, showing a positional relationship among the toilet seat, the upper peripheral wall, and the ball portion peripheral wall in the toilet with a load. FIG. 9 is a partially enlarged cross-sectional view taken along line C-C ′ in FIG. 5, showing the positional relationship between the toilet seat, the front portion of the upper peripheral wall, and the ball portion peripheral wall when performing edge cleaning without load. FIG. 10 is a partial enlarged cross-sectional view taken along the line D-D ′ in FIG. 6, showing a positional relationship between the toilet seat, the front portion of the lower peripheral wall, and the ball portion peripheral wall in a loaded, stool. FIG. 11 is a side view of the flush toilet in Example 1 of FIG. 1 in the same unloaded state. 12 is a side view of the flush toilet of FIG. 11 when loaded. 13 is a side view of the flush toilet in Example 2 of FIG. 4 in the same no-load state. 14 is a side view of the flush toilet of FIG. 13 when loaded. FIG. 15 is a partially enlarged sectional view showing a positional relationship between a urine receiving plate provided on the lower surface of the toilet seat in the front portion of the flush toilet of Example 3 according to the present invention and an edge cleaning configuration.

Example 1 of a flush toilet according to the present invention will be described with reference to FIGS. 1-3 and FIGS. 11 and 12, Example 2 will be described with reference to FIGS. 4-10 and FIGS. 13 and 14, and Example 3 will be described with reference to FIG. .

In the flush toilet of the present invention shown in FIG. 1 as a whole, the ball portion constituting the main body has an upper peripheral wall 1 and a ball portion peripheral wall 2 as an edge cleaning mold as described in detail in the aforementioned Patent Document 1, and between the two. A water collecting path 3 is provided. These cross-sectional shapes and positional relationships are as shown in FIG. 2, and FIG. 2 is a partial cross section on the right side of the ball portion of FIG. 1, so that the right side of FIG. Become. A droplet such as a urine droplet that flows down from the upper end surface of the upper peripheral wall 1 to the right outer peripheral surface flows to the lower left along the upper surface of the water collection channel 3 and is accommodated inside the ball peripheral wall 2.

According to the present invention, the toilet seat 4 in a position standing together with the toilet lid 5 in FIG. 1 is arranged in a U-shape so as to be substantially parallel to the outer peripheral edge of the lower surface and opposed to the upper end surface of the upper peripheral wall 1. As shown in FIG. 2 with the edge cleaning water supply means 4c and the toilet seat 4 lowered, the water supply means 4c is usually located at the upper end surface of the upper peripheral wall 1 facing through a space determined by four spacers 4b. Then, the cleaning water for edge cleaning is supplied to the ball portion together with the droplets adhering to or flowing on the peripheral surface of the upper peripheral wall 1 directly or via the water collecting channel 3.

Water supply by the water supply means 4c is performed in a state where the upper peripheral wall 1 is separated from the ball peripheral wall 2 as shown in FIG. 2 and a clearance of the water collection passage 3 is secured, and the water collection passage 3 is closed as shown in FIG. Not done in the state. That is, according to the present invention, the upper peripheral wall 1 is supported by the upper peripheral wall support portion 1a so as to be movable up and down, and when there is a load accompanying the seating of the user, the state is lowered as shown in FIG. At the time of no load accompanying the separation, the edge cleaning water supply is performed in the ascending position of FIG. Whether the state in which the toilet seat 4 and the toilet lid 5 are lowered is considered to be a heavy load is determined based on the magnitude of the difference from the user's load. The state in which the toilet seat 4 and the toilet lid 5 are raised, including when the boy urinates, is a no-load state, but no edge cleaning water supply is performed. Therefore, only when both the lower position of the toilet seat 4 and the raised position of the upper peripheral wall 1 are detected, the edge cleaning water supply means 4c is operated alone or in conjunction with the ball-in-part cleaning water supply means (not shown). Operate. The water supply means 4c has a branch line 4e on the lower surface base portion of the toilet seat 4, and the water supply means 4c so as to clean the surface of the cover portion of a local cleaning instrument (not shown) connected between both base portions of the upper peripheral wall 1 of the ball portion. Operate with. Further, by interlocking with the self-cleaning mechanism of the local cleaning instrument, the arm portion (not shown) of the local cleaning instrument can also be automatically cleaned. As a result, the attachment part of the local cleaning instrument, which conventionally required manual cleaning, is also automatically cleaned.

When the arrangement line of the water supply means 4c for edge cleaning and the arrangement position of the spacer 4b overlap with each other, the outlet of the water supply means is closed at the spacer arrangement position, and the cross-sectional shape of the spacer 4b is, for example, V-shaped, The contact area with the peripheral wall 1 is made small. In any case, the water discharge direction from the water supply means 4c to the upper peripheral wall 1 is not a right angle, but is inclined along the longitudinal direction of the upper peripheral wall, or the water discharge itself is misted to prevent water splashing and It is desirable to actively supply water to the contact area. As shown in FIG. 3, it is effective to prevent splashing to the outside by an outer skirt 4d provided on the outer periphery of the toilet seat 4, as shown in FIG.

Separately from the edge cleaning water supply means 4c, the main cleaning water on the inner surface of the ball peripheral wall 2 is provided with a water flow path for forming a swirling flow provided on the inner surface of the ball peripheral wall 2 by the water supply / drainage means at the rear part of the ball. Supplied through. The swirl flow conduit can be used either when the entire amount of the main cleaning water is led to the inner surface of the ball peripheral wall 2 or when a part is also guided to the inner surface of the upper peripheral wall 1.

FIG. 4 shows a flush toilet in the second embodiment of the present invention in a no-load state in which the toilet seat 4 and the toilet lid 5 are erected. In this second embodiment, the edge cleaning water supply means 4c and its branch line are provided on the lower surface of the toilet seat 4. The point 4e is exactly the same as that of the first embodiment, and the configuration and operation are also the same. The flush toilet of the second embodiment is different from that of the first embodiment in that the upper peripheral wall 1 is formed by changing the thickness of the side portion 1b and the front portion 1c in the vertical movement direction. The side portion 1b is a portion of the upper peripheral wall 1 that is located on both the left and right side wall portions of the ball portion peripheral wall 1, and is a portion that receives most of the load when seated by the user. As shown in FIGS. 7 and 8 of the cross section taken along the line -A 'and the line BB', the thickness in the vertical movement direction is increased. The front portion 1c is a U-shaped portion that connects the side portions 1b in the front as viewed from the seating position. The front portion 1c is shown in FIGS. 9 and 10 in the cross sections taken along the lines CC ′ and DD ′ of FIGS. As shown, the thickness in the vertical movement direction is reduced. The upper peripheral wall support part 1a supports the base part of the side part 1b of the upper peripheral wall 1 with an elastic material so that the whole upper peripheral wall 1 can be moved up and down.

When the user is seated, that is, when there is no load, as shown in FIGS. 5, 7, 9 and 13, the upper peripheral wall 1 including the side portion 1b and the front portion 1c has a gap, that is, a clearance between the upper end surface of the ball portion peripheral wall 2. As shown in FIGS. 5 and 9, the front portion 1c forms a water collecting passage 3 having a width larger than that of the side portion 1b. Edge cleaning is performed when it is detected that the toilet seat is in the lowered position in this unloaded state.

6, 8, 10, and 14, the upper peripheral wall 1 is in the lowered position, and therefore the side portion 1 b of the side seat 1 b is in contact with the upper surface of the ball portion peripheral wall 2, as shown in FIGS. 3 is closed, but the front part 1 c is separated from the upper surface of the ball part peripheral wall 2 and opens the water collecting channel 3. With this configuration, the upper peripheral wall support portion 1a can have a margin in the load resistance range of the elastic material.

The fact that the front part 1c of the upper peripheral wall 1 opens the water collecting channel 3 in the front part of the toilet even when the flush toilet is loaded is that urination at the seating position of the user is reversed from the inner opening of the water collecting channel 3 There is a risk of entering the ball and flowing backward to the outer peripheral surface side of the ball portion peripheral wall 2. In this embodiment, as a countermeasure, as shown in FIGS. 7 to 10, the upper peripheral wall 1 is provided with a hanging edge 1 d having a length covering the inner opening of the water collecting channel 3 at the lower end on the inner peripheral side. Since urination from the sitting position toward the front portion 1c of the upper peripheral wall 1 wets the inner peripheral surface of the upper peripheral wall 1 and falls into the ball portion from the lower end of the drooping edge 1d, urination does not flow back through the water collection channel 3.

FIG. 15 shows another countermeasure against urination from the seating position toward the front portion 1c of the upper peripheral wall 1 as the third embodiment of the flush toilet according to the present invention. In particular, as a countermeasure against urination toward the space 4h formed by the spacer 4b between the toilet seat 4 and the upper peripheral wall 4, the toilet seat 4 is suspended from a position near the upper end of the upper peripheral wall 1 on the inner peripheral surface side. 4 is provided. This urine receiving plate 4g is provided in a toilet seat portion which is the front as viewed from the user at the seating position, and desirably, the second urine receiving unit 4c branched from the water supply unit 4c to the lower surface of the toilet seat 4 along the urine receiving plate 4g. A branch line is provided, and cleaning water is supplied to the rear surface, preferably the front and rear surfaces, on the user side of the urine receiving plate 4g. In FIG. 15, the upper peripheral wall 1 is shown in the first embodiment, but may be the one shown in the second embodiment.

DESCRIPTION OF SYMBOLS 1 Upper peripheral wall 1a Upper peripheral wall support part 1b Side part 1c Front part 1d Hanging edge 2 Ball part peripheral wall B1 Water supply / drainage part 3 Water collecting channel 4 Toilet seat 4a Opening 4b Spacer 4c Water supply means 4d Outer skirt 4e Branch line (of water supply means) 4f Branch line (for water supply means) 4g Urination receiving plate 5 Toilet lid

Claims (8)

The upper peripheral wall is provided between the toilet seat and the ball peripheral wall, the outer peripheral surface of the upper peripheral wall is inclined inwardly toward the ball part downward, and the upper end surface of the upper peripheral wall is between the upper peripheral wall outer peripheral surface and the ball peripheral peripheral wall upper end surface. In a flush toilet that forms a water collection channel with a gap having a width that does not impede the flow of droplets flowing down from the outer peripheral surface into the ball portion, the toilet seat supplies cleaning water to the upper end surface of the upper peripheral wall on its lower surface A flush toilet comprising a water supply means. 2. The flush toilet according to claim 1, wherein the ball portion peripheral wall includes a water guide passage for guiding a swirling flow for ball portion cleaning to the inner surface. 2. The flush toilet according to claim 1, wherein the upper peripheral wall is provided with a water conduit for guiding a part of the swirling flow for ball part cleaning to the inner surface. 2. The flush toilet according to claim 1, wherein the upper peripheral wall is elastically supported so that it can be lowered until it receives a load and comes into contact with the upper surface of the ball peripheral wall. The upper peripheral wall is mounted and fixed on the water supply / drainage part of the ball part and extends in an annular or closed U shape from the upper peripheral wall support part made of an elastic material, and supports the upper peripheral wall by the load from the toilet seat when seated by the user The flush toilet according to claim 1, wherein the portion is lowered with an elastic material while absorbing the load, and is elastically joined to the upper end surface of the ball portion peripheral wall at the lower end surface of the upper peripheral wall. The upper peripheral wall is formed thinner at the front part corresponding to the front part of the ball part than the side part corresponding to both side surfaces, and the lower part of the side part joins with the upper end face of the ball part peripheral wall when descending due to a load. The flush toilet according to claim 5, wherein the lower end surface of the front portion maintains a gap forming a water collecting channel with the upper end surface of the ball portion peripheral wall. The flush toilet according to claim 6, wherein the upper peripheral wall includes a hanging edge extending below the upper end surface of the ball portion peripheral wall at the lower end on the inner surface side of the ball portion at least in the front portion. The toilet seat is provided with a urine receiving plate extending near the upper end on the inner peripheral surface side of the upper peripheral wall on the lower surface of the front portion thereof, and the water supply means is provided at least on the rear surface side of the urine receiving plate so as to be able to supply cleaning water. The flush toilet according to any one of claims 1 to 7.